摘要
在压水堆核电站换料的过程中存在燃料棒破损的可能。而一旦破损,燃料棒中所包容的高辐射水平裂变气体将可能导致反应堆厂房出现较高的空气污染和外照射剂量率,使相关工作人员受到较大剂量的内、外照射。本文对燃料破损可能导致的气载放射性浓度、场所内、外照射剂量率进行了估算,同时对通风系统的净化方式、净化时间进行了评估。
There exists probability of fuel assembly damage in PWR during refueling period. In case of fuel assembly damage, fission gas with high activity could leak from the fuel rod and result in higher air contamination and external exposure dose-rate in reactor building. As a consequence, staff in reactor building could receive higher internal and external dose. Tnis paper evaluates the airborne radioactive concentration, dose-rate of internal and external exposure as well as purification mode and operating time of ventilation systems in reactor building.
出处
《辐射防护》
CAS
CSCD
北大核心
2007年第1期32-37,共6页
Radiation Protection
